MERLIN LEGEND Communications System Release 6.1
Installation
555-661-140
Issue 1
August 1998
Installing the Control Unit
Page 2-9
AC Power and Grounding
!
WARNING:
!
Hazardous voltages are present during the following tests. Follow
all instructions carefully when working with AC power line
voltages.
Using an Ideal 61-035 Circuit Tester (or Equivalent)
!Plug the circuit tester into the outlet that you want to test.
If the circuit is properly grounded, the yellow and white lights on the
tester turn on.
!Unplug the circuit tester.
Using a Volt-Ohm Milliammeter (VOM)
!Set the VOM to the lowest scale on which you can read 130 V AC.
!Measure the AC outlet voltages. Figure 2-2 on page 2-10
.
■ Phase to ground should be 110 to 125 V AC.
■ Neutral to ground should be less than 1 V AC.
■ Phase to neutral should be 110 to 125 V AC.